To: linux-kernel@vger.kernel.org
From: "H. Peter Anvin" <hpa@zytor.com>
Subject: Re: Crusoe's performance on linux?
Date: 22 Jun 2003 22:22:41 -0700
Organization: Transmeta Corporation, Santa Clara CA
Message-ID: <bd62r1$6vb$1@cesium.transmeta.com>
References: <3EF1E6CD.4040800@thai.com> <3EF2144D.5060902@thai.com> <20030619221126.B3287@ucw.cz> <3EF67AD4.4040601@thai.com>
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Followup to:  <3EF67AD4.4040601@thai.com>
By author:    Samphan Raruenrom <samphan@thai.com>
In newsgroup: linux.dev.kernel
>
> Vojtech Pavlik wrote:
> > Could you a test just for me? Take vanilla 2.4.21 and then
> > make oldconfig; make dep; time make bzImage 
> > That's basically what I want to know how long will take, since
> > it's one of the most common time consuming tasks the thing will
> > have to handle.
> Done! Here're the results:-
> 
> Desktop - Pentium III 1 G Hz 754 MB	->	10.x min.
> Tablet PC - Crusoe TM5800 1 GHz 731 MB	->	17.x min.
> 
>  From freshdiagnos benchmack, the TPC has about 2x faster RAM.
> I use tmpfs for the whole process so disk speed didn't count.
> Both test run without X or any foreground process using
> 2.4.21-ac1 and RedHat kernel.
> 
> What do you think?
> Shouldn't TM5800 with 4-wide VLIW engine and 64 registers,
> working on a single task, run as fast as a Pentium III?
> Why it take 70% longer for such small process (make+gcc+as)!
> There must be something wrong.
> 

Which version of gcc are you running on the two machines?

	-hpa
-- 
<hpa@transmeta.com> at work, <hpa@zytor.com> in private!
"Unix gives you enough rope to shoot yourself in the foot."
Architectures needed: ia64 m68k mips64 ppc ppc64 s390 s390x sh v850 x86-64
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